Bcachefs: Difference between revisions

Line 54:

=== Generate bcachefs enabled installation media ===

Use following Nix expression ~~<code>iso.nix</code>~~ to generate a ISO installation image with a bcachefs enabled kernel

Use following Nix [[Flakes|Flake-expression]] to generate a ISO installation image with a bcachefs enabled kernel

<~~syntaxhighlight lang="nix"~~>

{{file|flake.nix|nix|<nowiki>

~~# This module defines a small NixOS installation CD. It does not~~

~~# contain any graphical stuff.~~

~~{ config, pkgs, lib, ... }:~~

{

~~imports~~ = [

description = "Bcachefs enabled installation media";

~~# Currently fails on NixOS~~ 23.~~05 to build due to ZFS incompatibility with bcachefs~~

inputs.nixos.url = "nixpkgs/23.11-beta";

~~#<nixpkgs/~~nixos/modules~~/installer/cd-dvd/installation-cd-minimal.nix>~~

outputs = { self, nixos }: {

~~<nixpkgs~~/nixos/modules/installer/cd-dvd/installation-cd-minimal~~-new-kernel-no-zfs~~.nix>

nixosConfigurations = {

];

exampleIso = nixos.lib.nixosSystem {

boot.supportedFilesystems = [ "bcachefs" ];

system = "x86_64-linux";

~~# kernelPackages already defined in installation-cd-minimal-new-kernel-no-zfs.nix~~

modules = [

boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_testing_bcachefs;

"${nixos}/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix"

~~isoImage.squashfsCompression = "gzip -Xcompression-level 1"~~;

({ lib, pkgs, ... }: {

boot.supportedFilesystems = [ "bcachefs" ];

boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_testing_bcachefs;

})

];

};

}

</~~syntaxhighlight~~>

</nowiki>}}

The following commands will generate the iso-image which will be available in the directory <code>./result/iso</code>

# nix-build ~~'<nixpkgs/nixos>' -A~~ config.system.build.isoImage ~~-I nixos-config=iso.nix~~

# git init

# git add flake.nix

# nix build .#nixosConfigurations.exampleIso.config.system.build.isoImage

</syntaxhighlight>

@@ Line 54: / Line 54: @@
 === Generate bcachefs enabled installation media ===
-Use following Nix expression <code>iso.nix</code> to generate a ISO installation image with a bcachefs enabled kernel
+Use following Nix [[Flakes|Flake-expression]] to generate a ISO installation image with a bcachefs enabled kernel
-<syntaxhighlight lang="nix">
+{{file|flake.nix|nix|<nowiki>
-# This module defines a small NixOS installation CD. It does not
-# contain any graphical stuff.
-{ config, pkgs, lib, ... }:
 {
-   imports = [
+   description = "Bcachefs enabled installation media";
-    # Currently fails on NixOS 23.05 to build due to ZFS incompatibility with bcachefs
+  inputs.nixos.url = "nixpkgs/23.11-beta";
-     #<nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix>
+  outputs = { self, nixos }: {
-    <nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-minimal-new-kernel-no-zfs.nix>
+     nixosConfigurations = {
-  ];
+      exampleIso = nixos.lib.nixosSystem {
-  boot.supportedFilesystems = [ "bcachefs" ];
+        system = "x86_64-linux";
-  # kernelPackages already defined in installation-cd-minimal-new-kernel-no-zfs.nix
+        modules = [
-  boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_testing_bcachefs;
+          "${nixos}/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix"
-   isoImage.squashfsCompression = "gzip -Xcompression-level 1";
+          ({ lib, pkgs, ... }: {
+            boot.supportedFilesystems = [ "bcachefs" ];
+            boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_testing_bcachefs;
+          })
+        ];
+      };
+    };
+   };
 }
-</syntaxhighlight>
+</nowiki>}}
+The following commands will generate the iso-image which will be available in the directory <code>./result/iso</code>
 <syntaxhighlight lang="console">
-# nix-build '<nixpkgs/nixos>' -A config.system.build.isoImage -I nixos-config=iso.nix
+# git init
+# git add flake.nix
+# nix build .#nixosConfigurations.exampleIso.config.system.build.isoImage
 </syntaxhighlight>